第十一届国际土力学与基础工程会议(每四年召开一次)于1985年8月11日至16日在美国旧金山召开。这届会议适逢国际土力学与基础工程协会成立五十周年纪念,与会者逾一千人,来自五十多个国家,盛况空前。我国派出20位代表出席会议,是历届最多的一次。这次会议共收到论文443篇,包括:(1)土的力学特性和分析方法,94篇(第2卷);(2)土的 The 11th International Conference on Soil Mechanics and Basic Engineering (convened once every four years) was held in San Francisco, USA, from August 11 to August 16, 1985. This session coincided with the commemoration of the 50th anniversary of the founding of the International Society for Soil Mechanics and Basic Engineering, with more than 1,000 participants from more than 50 countries. Our country sent 20 representatives to attend the meeting, which is the largest ever. A total of 443 papers were received at the conference, including: (1) Mechanical properties and analytical methods of soil, 94 (Vol. 2); (2) Soil